[TechAssist] Re: mm52100 chassis mmc102a need schematic rca projo
- From: "Keith Trumbla" <keith@xxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 2 Nov 2004 01:10:28 -0600
Start by checking the standby power supplies for shorted/leaky rectifiers.
Yes those big ones. Particularly CR14602 and CR14608. These diodes can go
leaky causing the corresponding B+ to drop and show noisy when viewed with a
scope. Cr14608 is your 5 volt standby. I would start there. Also these are
notorious for bad solder all over the main HV/SMPS board. Typical RCA
HTH
Keith Trumbla / Pres
BEM Electronics Inc.
26 Monarch Mews
Winnipeg, MB R3R 2J3
Canada
Ph.204.832.6237
----- Original Message -----
From: "Ron Miller d.b.a. Country TV" <rlmbkm@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, November 01, 2004 8:54 PM
Subject: [TechAssist] Re: mm52100 chassis mmc102a need schematic rca projo
> >From what I remember from other post fans must be working or set will
shut
> down.hth
> Country TV
> Ron Miller
> Inez, TX. 77968
>
> ----- Original Message -----
> From: "pete" <tvtech@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, November 01, 2004 8:44 PM
> Subject: [TechAssist] mm52100 chassis mmc102a need schematic rca projo
>
>
> > Hi guys I have shutdown problem. when i hit the power button high
voltage
> comes on and it shutts down the kicker is the fans do not try to turn on.
> does anybody have anything on this set? I have no Idea.
> > I have a
> > Perdomo Tv Inc Since 1972
> > Miami.Fl
> >
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